Finding the Fourth Proportional to 2,650.67, 3,977.54 and 1,090.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,650.67 : 3,977.54 = 1,090.83 : x
2. Step 2: Convert to fraction form
   2,650.67/3,977.54 = 1,090.83/x
3. Step 3: Cross multiply
   2,650.67x = 3,977.54 × 1,090.83
4. Step 4: Simplify right side
   2,650.67x = 4,338,823.62
5. Step 5: Solve for x
   x = 4,338,823.62/2,650.67
6. Step 6: Final answer
   x = 1,636.88